The beater bar makes a horrible clunking noise when I turn it on

First make sure there are not any of the rubber cogs missing from the belt, it may be wise to replace the belt anyway because the cogs may be worn. Make sure the brush roll does not have any play in it anywhere and that It fits tightly in the nozzle housing without any play. If there is any play or wiggle that will cause it to move.

Hi there,

I'm sorry to hear you're having difficulties with your DC14 Animal. The brush control system is designed to make a ratcheting noise to warn you if something jams the brushbar. To ensure everything is correct with your machine, please follow the quick troubleshooting checks shown in our online support guide:

http://www.dyson.co.uk/support/help.asp?article=668&product=DC14-ANIMAL

Please note, the brushbar will never rotate when the cleaner is standing upright, or if you have the brush control set to 'Hard Floors'.

This should allow you to resolve your issue without further assistance. However, if you've followed the steps shown in the support guide and are still concerned, please call us free on 08002980298 (UK), or 1866MYDYSON (US). One of our experts will be happy to run through some troubleshooting over the phone with you to establish the cause of the issue, and will be able to recommend the best course of action.

Kind regards,

Jack
Dyson Online Customer Support

That noise is the clutch. A very expensive part and very hard to replace. When a problem with the clutch happens it's generally not worth the time and money to replace.

I suggest getting a different type of vacuum, maybe a Miele or Sebo. With the money spent on one of those vacuums, you wont have problems like you would with a Dyson. And the cleaning power is so much more powerful than what any Dyson can offer.

Check out this YouTube Video:

http://www.ezvacuum.com/dyson-dc07dc14-clutch-assembly-90025204-genuine-p-1636.html

After reading a ton of forums I thought I needed to replace the clutch assembly. My Dyson was making a horrible noise when in "carpet" mode. Got a new clutch on eBay for a great price. Somewhat hard to replace, but thanks to the YouTube video, I was able to get it in.

HOWEVER this did not resolve the issue. I realized the beater bar was not spinning or was slipping. I thought I cleaned it all out but realized you need to take the beater bar out and pop the end cap out and clean the INSIDE of the beater bar. I additionally sprayed WD40 in there.

It spins great now and in the end I think that's all I had to do was clean out the cat hair build up inside the beater bar. But now I have a new clutch & belts too. Hopefully won't have issues anytime soon.

If it is not on the bare floor setting then you most likely have a belt issue it is not an easy fix I am sorry to say if your mechanically inclined I can tell you how to replace it.

Is it a part of beater bar? Is that what your saying, If so you just have to order another beater bar, If you can send pic, it will help more.

The belt could be damaged. Call the Dyson helpline. They will listen to the noise and troubleshoot it for you. If it is the brushbar motor they will have a repair dealer look at it. If it is the belt that is damaged, their solution will depend on whether your machine is still under warranty or not.

The All Floors model has a protective belt clutch system and the rattling sound means the clutch has slipped. This would have to be repaired officially by a Dyson repairer.

Ok, so I had the same ratching noise and took the advice of many sites directing me to clean the brush. But like most I cleaned the brush and the noise continues and the brush does not spin. Reluctant to take it to get serviced I dug a little deeper and now it works just fine. This is what you need to do as removing any hair from just the brush part will not be enough.
Remove the entire brush bar from the bottom of the Dyson, this means pulling the bar out of the drive belt. This is not to difficult just use a little muscle as the belt will stretch. Once the bar is out grasp hold of the two plastic end caps on the brush bar which the brush bar actual spins in. These two caps are connected by a slim metal rod which runs through the brush bar. Place one hand on each side and begin to twist and pull until one of the caps comes off. Once the cap is off of the one side you can pull the other cap from the other side through the brush bar as this cap will be the one attached to the slim bar I mentioned above. If like mine you will see a ton of hair wrapped around these caps and inside the ends of the brush bar. Clean them out as best as possible.
After you clean it out, run the cap with the rod back through the brush bar, attach the other cap and twist and push together. Make sure the caps lineup which each other just like they were when you pulled it out. You'll notice how much more freely the brush bar spins between the two caps then before you cleaned it. Now, pull on the drive belt and feed the brush bar back through and attach as it was to begin with. This did the trick for me.

I have a dyson 17 animal and have a loud noise comming from the beater bar area.Also I don't think the hight adjuster is working properly.